Roll Skia from c493eab to 189ecd4 (3 revisions) (#22119)

Author: skia-flutter-autoroll

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': 'c493eabd56d076b149a758b29cdd709fc55e7d69',
+  'skia_revision': '189ecd485ade30950fda041ca1f91ecf7e6b7d50',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 969c528c3e308f62542eb1a30226de5b
+Signature: b1c18192841f34809a7a3e6b72dbfcc9
 
 UNUSED LICENSES:
 
@@ -4137,6 +4137,7 @@ FILE: ../../../third_party/skia/samplecode/SampleAudio.cpp
 FILE: ../../../third_party/skia/samplecode/SampleFitCubicToCircle.cpp
 FILE: ../../../third_party/skia/samplecode/SampleSimpleStroker.cpp
 FILE: ../../../third_party/skia/samplecode/SampleTiming.cpp
+FILE: ../../../third_party/skia/samplecode/SampleVariableWidthStroker.cpp
 FILE: ../../../third_party/skia/src/core/SkColorFilterPriv.h
 FILE: ../../../third_party/skia/src/core/SkCompressedDataUtils.cpp
 FILE: ../../../third_party/skia/src/core/SkCompressedDataUtils.h